Connections between Access Manager server and Directory Server seem to close unexpectedly due to unsynchronized access to a shared variable. This is a known problem that is fixed in LDAP JDK 4.19
Solution: Upgrade to LDAP JDK 4.19. Download Patch 119725–04–1 from the following URL: http://sunsolve.sun.com/search/document.do?assetkey=1-21-119725-04-1 The patch will work for Solaris 9 and 10. The same patch is used for both SPARC and x86 platforms.